Amapayipiemikhakheni yokukhiqiza yezimboni kanye nezakhamuzi zinezinhlobonhlobo zezicelo, zamanzi, uwoyela, igesi kanye nolunye uketshezi oluthuthwa kusetshenziswa ipayipi kunezinzuzo ezilula, ezisheshayo neziphansi, ikakhulukazi inqubo yokuthutha amabanga amade, engabonisa izinzuzo zayo. inkambo ende yodonga lwangaphakathi lwepayipi lwakhiwe ekufakweni noma ukungcola.Uma ipayipi lizokwenza isikali noma ukungcola kwangasese, lizokwenza udonga lwangaphakathi lwamafutha epayipi noma i-wax enqwabelene epayipini legesi yezimboni nayo izokwakha i-coke coke nokunye ukungcola.Ukungcola okufakwe oketshezini lwamapayipi kukhulisa kakhulu ukumelana phakathi nokuthutha hhayi kuphela ukusebenza kahle kokudlulisela kanye nokusetshenziswa kwamandla okudingekayo ekuthutheni uketshezi nakho kukhuphuke kakhulu.Ukungcola kuzodala ukugqwala kwezinto zamapayipi futhi kubangele umonakalo omkhulu ekugqabukeni kwamapayipi, ukulahlekelwa kokuvuza koketshezi oludlulisayo, futhi kubangele nokuvala.Ukugqwala kwamapayipi kuvame ukubangelwa ukuhamba kwamapayipi angcolile Ngokomnotho, umonakalo omkhulu wokuphepha.Ngokukhula kwamapayipi nomfutho wepayipi iminyaka iyanda, ukugijima, ukuconsa, ukukala, ukugqwala, ukuxhuma nokuqhuma kwamapayipi avelayo ngeke nje lokhu kubonakale kungumkhiqizo ojwayelekile futhi impilo izothinteka kabi ezimpilweni zabantu kanye nempahla edalwe umonakalo ongalungiseki, isidingo sokuhlanzwa njalo kwepayipi.Hlanza amapayipi ngokuya ngezimo ezithile zokukalwa okuhlukile usebenzisa izindlela ezahlukahlukene, njengokusebenzisa i-asidi, i-alkali noma isixazululo samanzi samakhemikhali avaliwe wokuhlanza amapayipi, ungasebenzisa i-ultrasound, ijethi lamanzi, noma ezinye izindlela ezibonakalayo ukuze ungcolise futhi kususwe odongeni kodwa kube lula ezinyathelweni zakuqala zesikali sepayipi ukuhlanzwa kwezingulube kungase kube indlela elula, ebiza kancane kodwa enomphumela omuhle.Ukuhlanza izingulube embonini, eyaziwa nangokuthi ukuhlanza izingulube.

Ingulube iyimpahla ekhethekile ye-polyurethane emise okwenhlamvu yezinto zokwakha, ukumelana nokuncipha, amandla aphezulu.Ubuchwepheshe bokuhlanza izingulube ukususa isikali sepayipi, i-sediment noma umzimba wangaphandle ngenjongo yobuchwepheshe.Umgomo wayo wokusebenza ufakwa kuma-Pig launchers ngemva kokwethula indlela eya phambili yemidiya kumehluko we-Pig pressure, ukwakheka kokuphokophela phambili, iNgulube iqhubekela phambili epayipini, ngesikhathi sokusebenza, Ingulube ikhubazekile kancane.Ingulube ngokwayo noma okunamathiselwe kwayo ekungcoleni kwamasiko ehlala ithintana nodonga, icindezela ngokumelene nokungcoliswa, ama-scrapers, ukuguguleka, ukudlidliza okuphukile, ukususa isakhiwo sepayipi, i-sediment kanye nodaba lwangaphandle.Ngesikhathi esifanayo, i-medium edongeni le-tube ngokusebenzisa ukupheka kwegebe lengulube elakheka i-annulus lakhiwa lapho indiza yesivinini esikhulu, indima yayo esifundeni esingaphambili kwakhiwa njenge-vacuum, ivumela ukusebenza kwengulube, kanye ne-scraped The umthelela we-slag engcolile, i-tube yokukhipha enyakazayo futhi efika ngesikhathi, ivimbela ngokuphumelelayo ukuqoqwa kokungcola kwezinsalela ku-tube ukugwema into yokuvala.

I-pigging ibonakala ngoba yakhiwe ngegwebu le-polyurethane elikwazi ukuguquguquka kahle ukuze, emgqeni wendololwane, ukufakwa kwe-tee kanye nesigaba samapayipi amancane kungagotshwa kalula futhi kube nokungagugi kahle, ukwazi ukuhamba amabanga amade iphayiphi.Ekuhlanzeni amakhilomitha amaningana kanye nokuma kwamapayipi okuhlanza imishini noma ukuhlanza i-jet kunobunzima bokusebenzisa ukuhlanza izingulube ngokuvamile kungaba ngcono ukuqedela imisebenzi yokuhlanza.